New figures from the General Ophthalmic Services show more people are getting their eyes tested on the NHS.
In excess of 11 million people had their vision examined on the NHS in the year 2007-8, which is an increase of 1.4 million people over five years.
The Activity Statistics for England and Wales report - which took figures to the end of March - also revealed almost 330,000 of these sight tests took place in the home or in a residential home, 75,000 more than in 2002-3.
NHS spokesperson Tim Straughan said: "A sight test has the potential to transform a person"s quality of life."
The government recommends people have a sight test at least every two years.
It is particularly important for people who wear contact lenses to get their eyes tested regularly, so they can be assured their prescriptions are up to date when they buy contact lenses online.
by Adrian Galbreth